Congo Sunbird Cinnyris congensis

A slim, long-billed sunbird in which males and females are very different. Males are mostly black and dark green, with a red band across the underparts and extremely elongated central tail feathers. Females are very plain, gray-brown above and paler below. A localized and poorly known species that is found in rainforest along the banks of large rivers. Similar to Orange-tufted Sunbird, but male has a red rather than purple breast band and an elongated central tail, and the female is even plainer. The female is also similar to female Green Sunbird, but is longer-billed. The voice is unknown.